The distance between consecutive wave crests or wave troughs is the __________.
A. fetch
B. backwash
C. wavelength
D. refraction
E. wave height
Answer: C. wavelength
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This text defines Europe as
A. the land west of the Ural Mountains and north of the Mediterranean B. lands bordering the Atlantic Ocean C. countries that were not dominated by communism after World War II D. countries that are members of the European Union or are likely to be in the next decade
Which are closer together: the two nuclei within potassium fluoride, KF, or the two nuclei within molecular fluorine, F2?
A) KF B) C) Both are the same. Any atom bonded to F will have the same inter-nuclear separation. D) It makes little sense to compare two molecules which exist in different physical states. KF is a solid while F2 is a gas.
Which of the following is the name of the free radical formed after radiation knocks an electron out of a water molecule?
A) hydronium B) hydroxide C) hydroxium D) hydroxyl
If you live in an area that was flooded by the 100-year flood last year, you can conclude that
A) the next 100-year flood will occur in exactly 100 years. B) there is a 1% chance you could be flooded by the 100-year flood again this year. C) you do not have to worry about another flood of that size during your lifetime. D) the next 100-year flood will occur in exactly 99 years.